[Feature Request] Cancel Button at Compiling Shaders

Bump dunno about anyone else, but I know its something im doing wrong. Just clicking on the preview pane causes it to load, and start compiling shaders. So if i just click on the wrong thing before saving i can get stuck for like 20 min to an hour. Is game design just like that by design?..Iv got a pretty good label system going on, but sometimes i just click an asset like its gonna show me a preview out of habit of clicking things irl and boom, im screwed.

Sorry complete newbie. I guess my question is was there a cancel button, but I guess this thread answers that. So count this as a vote for such a feature if its even possible? Thanx. If not is there perhaps some type of industry workaround people use to preview complete landscapes, or height maps while world building?